15423842975040 has 896 divisors, whose sum is σ = 57453580800000. Its totient is φ = 3887566036992.

The previous prime is 15423842975033. The next prime is 15423842975041. The reversal of 15423842975040 is 4057924832451.

It is a happy number.

15423842975040 is a `hidden beast` number, since 1 + 5 + 4 + 2 + 3 + 8 + 42 + 97 + 504 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15423842975041) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10808578807 + ... + 10808580233.

It is an arithmetic number, because the mean of its divisors is an integer number (64122300000).

Almost surely, 2^{15423842975040} is an apocalyptic number.

15423842975040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15423842975040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28726790400000).

15423842975040 is an abundant number, since it is smaller than the sum of its proper divisors (42029737824960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15423842975040 is a wasteful number, since it uses less digits than its factorization.

15423842975040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084 (or 2068 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 15423842975040 in words is "fifteen trillion, four hundred twenty-three billion, eight hundred forty-two million, nine hundred seventy-five thousand, forty".